Limbaugh speculated that O’Reilly and Krauthammer may see his favorable rhetoric on Walker as noteworthy because they see Walker’s perceived weak stance on immigration as a way to offer conservative credence to a candidate that more identifies with the Republican establishment’s stance on that issue.

“It’s immigration,” Limbaugh said to a caller. “They touted me touting Walker because that puts me touting a guy who is not quite an open borders guy, but he’s not really opposed to doing this amnesty for the illegals already here. He’s really good on closing the border, he’s excellent on border security, but he’s also got a position here on Obama’s executive amnesty that bothers some people. He’s certainly not as solid on that as your guy Ted Cruz is.”

Later in the segment, he elaborated on his hypothesis.

“Look, I’m under no illusions here,” Limbaugh added. “Let’s be frank. Cable news can highlight things that I say every night if they wanted to. I mean, let’s call it what it is. It’s not that something happens here that’s so unique it’s newsworthy, ’cause everything that happens here is newsworthy, but I’m not under any illusions here. The Republican establishment is pro-amnesty, there’s no question about it. And if you look at Scott Walker, that would be the one area where people would have red flags going up. And so here comes Fox News, ‘Hey, man, Walker, big bump from Rush Limbaugh. Does that matter?’ ‘Oh, yeah, that could be exactly what he needs, big push, big push.’ With Dr. Krauthammer and O’Reilly both agreeing. And it’s right in there, one of the reasons I’m convinced — I could be wrong. It doesn’t matter either way. Don’t anybody tell anybody I’m mad about anything. I’m not mad. I don’t get mad over things like this. It’s not useful. To me it’s fascinating.”